Men?s 2.5mm Wetsuit Vest, Full Front Zipper Men?s 2.5mm Wetsuit Vest, Full Front Zipper with SuperStretch CR-Tech and titanium enriched neoprene. The sleek, 4-Panel sleeveless design full front YKK zipper is perfect for chilly water, brisk breezes and easy on an off changes. ~4-Panel SuperStretch Design ~Titanium enriched for added warmth water resistance ~2.5mm highest quality neoprene ~Flatlock seam stitching adds strength durability ~Smooth and comfortable ~Full front zipper for easy changes ~Protective neoprene flap behind zipper ~Perfect vest for shoulder problems ~Heavy duty full frontal #10 YKK Zipper ~90% neoprene, 10% nylon ~Protective DWR coating wicks water away ~Nylon Jersey inner core for better stretch comfort ~Extremely versatile water sports vest ~Warmth for the core freedom for the arms ~Wear alone, with rash guard or under wetsuit ~Provides protection from rash, sun and wind ~Multi-functional, great for all activities involving water ~Swimming, Surfing, Fishing, SUP, Kayaking, Canoeing, Water Aerobics, Pool Rehab ~Under water skiing vest for increased warmth ~Built for comfort, function performance Water Temperature Recommendation: 73 degrees and up Men?s Size Chart Search: SIZE CHEST WAIST WEIGHT Small 31-34 28-30 115-140 Medium 35-38 30-32 140-165 Large 39-41 34-35 165-190 XL 42-44 35-37 190-210 2XL 45-47 37-39 210-235 3XL 48-49 39-40 235-255 Men?s 2.5mm Wetsuit Vest, Full Front Zipper should be very snug for Liquid activities to restrict water from flushing the vest. Metric conversion: 1 inch = 2.54cm, 1 pound = .45kg